they are hard to clean and more likely to get cavities 译成汉语

问题描述:

they are hard to clean and more likely to get cavities 译成汉语

他们难以清洁,并且容易有蛀洞。
PS:你这个跟牙齿有关系吧。。

它们很难清洁并且更像变成洞

它们很难清理干净,很可能会变成蛀牙.